Lubricant A substance (such as grease) capable of reducing friction, heat, and wear when introduced as a film between solid surfaces to improve efficiency and reducing wear. ex-oil,grease,graphite. lubrication lubrication may be defined as " the reduction of friction and wear between the surface. this type of substanc…

Gate 13-year Question Paper Gate 2016 Solved paper Set-1  Click Here to see Set-2  Click Here to see Set-3  Click Here to see Gate 2014-solved paper Click Here to see Gate 2013-solved paper Click Here to see Gate 2012 Solved paper Click Here to see Gate 2011-solved paper Click Here to see …

Lean process Lean is the streamlined manufacturing and production process. it has speed it removes the wastage. it also removes the nonvalue added steps from manufacturing processes. it focused on Customers based manufacturing. Six Sigma process Six Sigma is the process to eliminate defects from products. it has A…

Wastage in the manufacturing industry Inventory- The most expensive waste of manufacturing systems is inventory because it requires proper care and well-defined strategies. Large amount of raw materials Too much-finished products Large number of work in progress material How much inventory should you store for future pr…

Kanban theory Kanban is a visual system for managing work during work is in the process to improve efficiency. Kanban visualizes both the process (the workflow) and the actual work passing through that process. it is a part of Just in Time (JIT) and Lean Manufacturing process. Some important point that is followed in Kannan s…

Gas Welding Gas welding is a process in which acetylene and oxygen are used to produce a high-temperature flame zone to melt the material and fuse them to produce weld bead. Since there is no external filler material is used to produce weld pool so it is an autogenous process There are three types of flame produced duri…

Production of metallic powder All the property of powder metallurgy only depends on the size of the powder of metal/alloy when it is produced. the important characteristic of powder includes the size, shape and size distribution.   There are the following number of processes a used to manufacture the metallic powder- …

The terminology used in IC Engine Bore-  The inner diameter of the cylinder is known as the bore. Top dead center(TDC)-  The maximum displacement of the piston from the mean position is known as Top dead center. In this case, connecting rod and crankshaft are in the same line. When the top dead center is achieved…

Kaizen theory it is a Japanese theory in which slow but continuous improvement of system is the key principle. kaizen is the base of Lean manufacturing and Toyota manufacturing system.  In an Assembly line/work station that uses kaizen, all workers look for small ways to improve work processes in a regular manner. after …